Ammonites
UNB-2019-1107Fossils » Eukaryote » Animalia » Mollusca » Cephalopoda
Description
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Four specimens; With two of the specimens being complete shells and the other two specimens are partial whorls.
The two complete specimens are cadicone shells with three to four whorls. Thin, curved ribs and slight keel on the smaller specimen of the two. Umbilicus in both specimens are infilled with sediment. Rounded/square aperture.
The two larger specimens of the partial whorls have larger, straight ribs. Keel is visible on the larger specimen.
Specifications
| Object name | Ammonites |
|---|---|
| ID | UNB-2019-1107 |
| Legal status | Permanent collection |
| Category | Fossil |
| Classification | Domain: Eukaryote Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda |
| Composition | Calcium carbonate |
| Age | Eon: Phanerozoic Era: Mesozoic Period: Triassic to Jurassic Epoch: Upper Triassic to Middle Jurassic Age: Rhaetian to Aalenian |
| Numeric age | 208.5 - 174.1 Mya |
| Origin | Dorset, England, United Kingdom |
| Pieces | 4 |
| Partial | No |
| Measurements |
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